The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

Ground and space-based telescopes have confirmed a microlensing event caused by a rogue planet wandering silently through the ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

The discovery of the interstellar object known as 3I/ATLAS has reignited debate among astronomers after new observations ...

Explore the vast distances between planets and objects in our solar system, and why most of the space around us is a wide ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

A newly analyzed set of images from the Hubble Space Telescope has intensified scientific debate over 3I/ATLAS, a rare ...

Astronomers may have uncovered a massive hidden planet far beyond Neptune, using decades-old infrared data. The object’s ...

Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

Scientists tracked interstellar comet 3I/ATLAS and found rotating jets in a rare sun-facing tail during its 2025 pass through ...